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Paper Abstract and Keywords
Presentation 2012-07-19 14:15
A Tracing Algorithm for the Boneh-Shaw Code under a Probabilistic Attack Model
Kouhei Kanai, Hiroki Koga (Tsukuba Univ) IT2012-10
Abstract (in Japanese) (See Japanese page) 
(in English) Illegal copies of digital contents is spreading due to the development of the Internet.A digital finger- printing code provides a method in which we can identify malicious users who generate illegal copies even under the collusion attack.In this paper, we discuss performance of the Boneh-Shaw code that is a concatenated code obtained from an inner and an outer codes.While the tracing algorithm proposed in [1] can identify at least one of malicious users in a coallision. The tracing algorithm does not always identify all the malicious users.In this paper,we assume that the size of the coalision is equal to two and the users in the coalision generate an illegal copy according to an unknown conditional probability distribution.We propose an algorithm that can identify one of the malicuous users with high probability by using the structure of the inner code.In additon,we show that both the malicuous users can be identified with high probability if we use the outer code.
Keyword (in Japanese) (See Japanese page) 
(in English) Anti-collusion code / digital fingerprinting code / marking assumption / / / / /  
Reference Info. IEICE Tech. Rep., vol. 112, no. 124, IT2012-10, pp. 7-12, July 2012.
Paper # IT2012-10 
Date of Issue 2012-07-12 (IT) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF IT2012-10

Conference Information
Committee IT  
Conference Date 2012-07-19 - 2012-07-20 
Place (in Japanese) (See Japanese page) 
Place (in English) Toyota Technological Institute 
Topics (in Japanese) (See Japanese page) 
Topics (in English) freshman session, general 
Paper Information
Registration To IT 
Conference Code 2012-07-IT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Tracing Algorithm for the Boneh-Shaw Code under a Probabilistic Attack Model 
Sub Title (in English)  
Keyword(1) Anti-collusion code  
Keyword(2) digital fingerprinting code  
Keyword(3) marking assumption  
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1st Author's Name Kouhei Kanai  
1st Author's Affiliation Tsukuba University (Tsukuba Univ)
2nd Author's Name Hiroki Koga  
2nd Author's Affiliation Tsukuba University (Tsukuba Univ)
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Speaker Author-1 
Date Time 2012-07-19 14:15:00 
Presentation Time 25 minutes 
Registration for IT 
Paper # IT2012-10 
Volume (vol) vol.112 
Number (no) no.124 
Page pp.7-12 
#Pages 6 
Date of Issue 2012-07-12 (IT) 

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